The Six-Component Wind Balance
A 1923 technical report from the National Advisory Committee for Aeronautics, issued through NASA's Technical Reports Server, describing a six-component wind balance used to measure aerodynamic forces on models in a wind tunnel for aeronautical engineers. The photographs show the balance's frame, struts and weighing mechanism from several angles, with plain black-and-white halftone plates captioned as figures. A designer could draw on their dense, mechanical geometry of crossed braces, dials and hanging arms.
